A healthy family is one that cherish individuality. You gained support while manage to develop your own self identity.
In unhealthy / dysfunctional family, the boundaries are violated and everyone is so enmeshed together emotionally.
This structure will destroy child development, his / her individuality which end up ruin his / her relationship with others when they step into adulthood or have their own families.
How’s your family system and how it affect you?